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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/on-unimplemented/on-impl.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/on-unimplemented/on-impl.rs')
-rw-r--r-- | src/test/ui/on-unimplemented/on-impl.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/on-unimplemented/on-impl.rs b/src/test/ui/on-unimplemented/on-impl.rs new file mode 100644 index 000000000..ab3e67d01 --- /dev/null +++ b/src/test/ui/on-unimplemented/on-impl.rs @@ -0,0 +1,25 @@ +// Test if the on_unimplemented message override works + +#![feature(rustc_attrs)] + + +#[rustc_on_unimplemented = "invalid"] +trait Index<Idx: ?Sized> { + type Output: ?Sized; + fn index(&self, index: Idx) -> &Self::Output; +} + +#[rustc_on_unimplemented = "a usize is required to index into a slice"] +impl Index<usize> for [i32] { + type Output = i32; + fn index(&self, index: usize) -> &i32 { + &self[index] + } +} + + +fn main() { + Index::<u32>::index(&[1, 2, 3] as &[i32], 2u32); + //~^ ERROR E0277 + //~| ERROR E0277 +} |